Results 51 to 60 of about 676 (182)
The magnetic levitation reaction flywheel (MLRW) is a novel actuator of spacecraft attitude control because of its significant advantages, including lack of friction and active suppression of vibration.
Zan He, Tong Wen, Xu Liu, Yuchen Suo
doaj +1 more source
Research on BLDCM Speed Control System Based on MFNN-PID Control Method
It is very difficult to solve brushless DC motor(BLDCM) overshooting and short time oscillation during keeping speed of BLDCM.In view of shortages of normal PID controller, Modified Fuzzy Neural Network adjusting PID parameters and its Algorithm are ...
Xin Wang
core +1 more source
Position sensorless driving of BLDCM using neural networks
AbstractA sensorless driving method of brushless DC motors (BLDCM) using neural networks has been studied in this paper. Considering the nonlinear characteristics and the parameter error of the modeling, neural networks are introduced to estimate the electromotive force (EMF).
Guo, Hai-Jiao +2 more
openaire +2 more sources
Although brushless direct current motor (BLDCM) drives are becoming more popular in industrial and commercial applications, there are still significant difficulties and unresolved research issues that must be addressed.
Dileep Kumar +4 more
doaj +1 more source
This article introduces an L‐shaped modular consequent‐pole PM machine with an asymmetrical hybrid pole structure (AHPLM‐CPM) for in‐hub e‐bikes, enhancing PM utilisation and flux‐focusing while reducing leakage flux. Multi‐objective optimisation minimises torque ripple and maximises torque, yielding an 80.4% higher PM utilisation ratio and 50% lower ...
Mohammadreza Naeimi +2 more
wiley +1 more source
Electric machines built according to the modular principle – with several three-phase windings on a stator – are a new direction of modern electromechanics, because they have a number of advantages compared to traditional single-winding machines.
І.З. Щур +2 more
doaj +1 more source
Design of optimal PI controller for torque ripple minimization of SVPWM-DTC of BLDC motor [PDF]
Conventional direct torque control (CDTC) for brushless DC motor (BLDCM) using proportional integral (PI) controller suffers from torque ripple minimization and speed regulation issues.
Gopisetti Satheesh +5 more
core +1 more source
An incremental predictive control strategy based on unipolar pulse width modulation (PWM) is proposed in the non‐commutation interval to double the current ripple frequency, which can reduce the current ripple. On this basis, the prediction equations of adjacent control periods are subtracted to eliminate the influence of non‐ideal back‐electromotive ...
Chong Zeng +3 more
wiley +1 more source
QPRC-Based DC-Link Stabilization of IFZ-Converter Applied to Suppress CCR in BLDCM Drives
The brushless dc motor (BLDCM) drives are adversely affected by commutation current ripple (CCR), which leads to increased torque ripple and degraded performance. The dc-dc converter based-BLDCM drive topology is widely preferred to suppress CCRs.
Dileep Kumar +3 more
doaj +1 more source
Implementation of PI Controller for 3ф BLDCM Drive Using FPGA [PDF]
Despite the need of a complex motor controller, the simple construction of BLDC motors offers several inherent advantages not provided with brushed DC motors in terms of low inertia, high torque and a very wide speed range.
Muniraj, C., Ramesh Balaji, S.M.
core +1 more source

